Catalog Hardware O-Rings and O-Ring Kits O-rings and O-ring kits help ensure a tight seal to prevent air and fluid leaks in applications such as air conditioner repair or plumbing installations. ◀◀ ◀ ▶ ▶▶ O-Ring: 152, 3 1/4 in Nominal Inside Dia., 3 7/16 in Nominal Outside Dia., 55 Shore D, White, 5 PK O-Ring: 218, 1 1/4 in Nominal Inside Dia., 1 1/2 in Nominal Outside Dia., 70 Shore A, Black, 100 PK O-Ring: 13.5 mm Nominal Inside Dia., 17.5 mm Nominal Outside Dia., 70 Shore A, Black, 50 PK O-Ring: 10 mm Nominal Inside Dia., 12 mm Nominal Outside Dia., 12 mm Actual Outside Dia., 100 PK O-Ring: 20.5 mm Nominal Inside Dia., 25.5 mm Nominal Outside Dia., 75 Shore A, Black, 10 PK O-Ring: 126, 1 3/8 in Nominal Inside Dia., 1 9/16 in Nominal Outside Dia., 75 Shore A, Black, Inch O-Ring: 376, 9 3/4 in Nominal Inside Dia., 10 1/8 in Nominal Outside Dia., 70 Shore A, Red, 5 PK O-Ring: 130, 1 5/8 in Nominal Inside Dia., 1 13/16 in Nominal Outside Dia., 75 Shore A, Brown, 25 PK O-Ring: 34 mm Nominal Inside Dia., 36 mm Nominal Outside Dia., 36 mm Actual Outside Dia., 25 PK O-Ring: 470, 21 in Nominal Inside Dia., 21 1/2 in Nominal Outside Dia., 75 Shore A, Black O-Ring: 169, 7 1/2 in Nominal Inside Dia., 7 11/16 in Nominal Outside Dia., 70 Shore A, Black, 10 PK O-Ring: 026, 1 1/4 in Nominal Inside Dia., 1 3/8 in Nominal Outside Dia., 70 Shore A, Black, 50 PK O-Ring: 211, 13/16 in Nominal Inside Dia., 1 1/16 in Nominal Outside Dia., 70 Shore A, Black, 25 PK O-Ring: 2.2 mm Nominal Inside Dia., 5.4 mm Nominal Outside Dia., 5.4 mm Actual Outside Dia., 100 PK O-Ring: 74.5 mm Nominal Inside Dia., 80.5 mm Nominal Outside Dia., 80.5 mm Actual Outside Dia., 5 PK O-Ring: 028, 1 3/8 in Nominal Inside Dia., 1 1/2 in Nominal Outside Dia., 75 Shore A, Black, Inch Backup Ring, Contoured: Buna N, For 115, 0.053 in Thick, 0.129 in Radius, 100 PK O-Ring: 002, 3/64 in Nominal Inside Dia., 9/64 in Nominal Outside Dia., 75 Shore A, Brown, 100 PK O-Ring: 236, 3 1/4 in Nominal Inside Dia., 3 1/2 in Nominal Outside Dia., 70 Shore A, Black, 25 PK O-Ring: 901, 3/16 in Nominal Inside Dia., 3/32 in Nominal Outside Dia., 70 Shore A, Red, 50 PK ◀◀ ◀ ▶ ▶▶
